AUSTIN, Oct 19 — Formula One leader Oscar Piastri said a collision with McLaren teammate Lando Norris, that forced both to retire from yesterday’s US Grand Prix sprint race without points, was a racing incident.

The Australian’s car was hit by Sauber’s Nico Hulkenberg at the first corner and pitched onto Norris, who had been on the front row and was chasing Red Bull’s eventual winner Max Verstappen.